- Secure combination lock design with up to 10,000 combinations to prevent unauthorized access and tampering with thermostat settings. - Easy installation with 4 extension screws; can be mounted quickly with adhesive or screws, providing protection for your thermostat in minutes. - Clear acrylic material with a transparent design that lets you view the thermostat display without opening the box; resistant to discoloration and yellowing over time. - Suitable for homes, factories, schools, hotels, and restaurants; protects against unwanted adjustments and helps extend the life of your thermostat. - Use scenarios: - In a family home to prevent children or guests from changing temperature settings and wasting energy. - In offices or schools to maintain consistent climate control and reduce energy costs. - In hotels or restaurants to ensure reliable guest comfort and deter thermostat tampering.